I had to take my dog to the vet for her shots. There were a lot of dogs at the vet's office.  I saw 4 rows of dog pens with 6 dogs in each row. How many dogs are in the dog pens?

Here is a group of dogs.

How many dogs are in this group?

 How how many groups of dogs do you see?  Type the numeral in the box, then click Check Me! Are there the same number of dogs in each group?

 There are 2 groups of 6 dogs.  Multiply to find out how many dogs are here all together. 2 x 6 means 2 groups of 6 Type the answer in the box.

 Now there are 3 groups of 6 dogs.  How many dogs are there all together? 3   x  6

When things are arranged evenly in columns and rows, it is called an array.

Remember that in a multiplication problem, the "X"   means "groups of."              3
groups of 2
means

3
x2

3
x2

Look at this array.
 2 x5 6 x4 4 x5 4 x4

Which multiplication fact matches this array?

 Look at this array.   Which multiplication fact matches this array? Click your answer. 4 x5 5 x 3 5 x 6 5 x 5

 Look at this array.   Which multiplication fact matches this array? Click your answer. 4 x 4 4 x 2 2 x 2 8 x 1

 Which array matches this multiplication fact? 3 x  4

 Which array matches this multiplication fact? 6 x2

 This is the array I saw at the vet's office. How many dogs were there? 4 x6 4 6 24

I found this cute dog at the vet's office and I took him home.

Now there are only 23 dogs left in the pens.